| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [subord] it [is] [verb] | 396 |
|
| 2 | [subord] [subord] it [be] [verb] | 153 |
|
| 3 | [subord] [subord] [pron] [is] [verb] | 134 |
|
| 4 | [subord] [conj] it [is] [verb] | 80 |
|
